package com.hxg.springboottest.repository;

import com.hxg.springboottest.entity.Book;
import org.springframework.data.jpa.repository.JpaRepository;

/**
 * @author HeXiangGuang
 * @create 2020-08-07 10:38
 */
//JpaRepository<里面数据类型，第一个实体类，第二个主键
public interface BookRepository extends JpaRepository<Book,Integer> {
}
